Giles f



8. F. EILLEY.;

Coall` Stove.

No. 80,985. Patented Aug.I u, 1888.

Vif/@asses @einen gieten @anni @Hina Letters Patent No. 80,935, dated August 11, 18GB.

IMPROVEMENT IN GOAL-STOVBS.

@te rlgetnie meurt in im .there tittet @und mit mating 'gmt' nf ilg'smiii.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, GILES F. FILLEY, of the city and couiityof St. Louis, and State of Missouri, have invented a new and useful Improvement in Coal-Stoves, of which the following is a full, clear, and exact description, reference being had to the annexed drawing, representing a vertical section of my invention, and making a part of this specification.

The object of my invention is to produce a stove specially. adapted to the burning of bituminous coal, and i so constructed that the gases and smoke may be almost wholly consumed, thus economizing fuel and increasing the heating power of the stove.

The box A ofthe stove is constructed in the ordinary manner, and on this isfastened, in any suitable way,

an inverted cone-shaped {ire-pot, B, having an Open grate, a, at the bottom, while its top is constructed with a ange, b, as shown, and a projection, c, forming the lower side of the opening closed by the door 7L. Insideof this flange are placed several lugs, one of which, d, is seen.

A second cone, D, whose base is exactly the size of that of B, is then placed on top'of B, itsfb'ase resting on the lugs before mentioned, and inside the flange b, which, however, does not clasp it tightly,I but leaves an open space or air-streak, s, between it and B, as seen. A projectiomp, from D, forms the other side of the Opening closed by t. p

4 The c`on`e D has` an opening, e,.at its apex, about six inches in diameter, depending somewhat on the size of the stove, this being about the average diameter, however.

A diaphragm, II, Supported by the studs m m', resting on the dome D, and 'by the casing, N, around the {ire-pot, has above-it a hot-air chamber, O, having either at its top or side an4 exit-ppe for the products of contibustion.V v

The casing N is made of open work, as Shown, and, while it gives a more finished appearance to thc stove, is not essential to its perfect operation, and, being open, does not interfere withthe draught.

Through these opcningsin the casing the cold air passes vinto 'and through the space between the fire-pot and dome, as shown by thc dark arrows, and mingles with the gases at the best point to produce the most perfect combustion, since its point of union is nearly at the surface of the burning coal, and before the temperature of' thecarbon of the gas is reduced below that of ignition, which has been proved to be an all-in1portant condition. to` the attainment of the result here sought.

To still further increase the volume of cold air introduced, the door may be perforated, as has been frequentlydonc heretofore for this purpose. I

'Ihe usual draught through the coalis obtained through the openings in the box A, as shown.

The currents of heated air are indicated by the red arrows, while the dark ones show the cold-air currents.

I am well aware that cold air has heretofore been introduced above the {ire-pot to improve combustion, and consequently I do not claim any novelty in such a device, nor in the shape of the re-pot; but

What I do claim as my invention, and desire to' secure by Letters Patent, is

Forming the fire-pot of a coal-stove of two cones, B and D, having an opening or air-streak, s, between their bases,for the admission of atmospheric air, when the same are arranged, constructed, and operate suhstantially as herein set forth.

GILES F. .FILLEY.

Witnesses:

SAMI. S.A BOYD, JAS. W. BELL. 

